Turtle Fur - Sun Shell UV Totally Tubular, Ultra Light Neck Warmer, Tropical Storm Size One Size Size: Adult, One Size fits most. Also fits Juniors and Teens Single-layer Sun Shell Ultra Lightweight Breathable Performance Fabric - 84% Recycled Polyester UPF 50+ Sun Protection - Blocks 97% of UV Rays 4-Way Stretch Multi-Functional Headwear - Over 10 ways to wear Perfect for mountain biking, cycling, hiking, kayaking, climbing, running, fishing, SUPing, backpacking, travel, yoga, and many more outdoor adventures.